Adds beginning of status code handling, better status code reporting

This commit is contained in:
Andrew Gioia 2023-12-09 14:40:26 -05:00
parent db57919ade
commit 7f6c4a6d77
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GPG Key ID: FC09694A000800C8
4 changed files with 120 additions and 82 deletions

View File

@ -84,9 +84,17 @@ class Follow
{
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$this->code = ($code) ? $code : 0;
if ($code == 200) {
$this->updatePath($this->step, 'code', $this->code);
return true;
// handle certain codes specifically
switch ($code)
{
case 200:
$this->updatePath($this->step, 'code', $this->code);
return true;
case 404:
$this->updatePath($this->step, 'code', $this->code);
$this->setError(['type' => 'code', 'message' => 'URL returned a 404 error response.']);
return true;
}
}
else

View File

@ -24,6 +24,7 @@ if (isset($_POST['url']))
// end on an error
if ($request->error)
{
$error = $request->error;
break;
}
@ -33,7 +34,7 @@ if (isset($_POST['url']))
// update our code
$code = ($request->code) ? $request->code : false;
} while ($code != 200);
} while (substr($code, 0, 1) != 2);
}
else
{

View File

@ -116,6 +116,16 @@ button[type="submit"]:hover {
background-color: #f0eded;
}
address {
display: flex;
align-self: stretch;
align-items: center;
justify-content: center;
font-style: normal;
padding: 0.5rem 0;
background: #ffdee3;
}
main {
align-items: center;
align-self: stretch;
@ -252,13 +262,21 @@ td {
vertical-align: top;
word-wrap: anywhere;
}
td:first-child {
text-align: center;
}
td:nth-child(2) {
line-height: 1.5rem;
padding: 0.8rem 1rem;
width: 100%;
}
td:nth-child(2) a:hover {
text-decoration-color: transparent;
}
td:nth-child(4) {
text-align: center;
padding-right: 1.5rem;
}
td b {
border: 1px solid #aaa;
border-right-width: 2px;
@ -271,10 +289,17 @@ td b {
padding: 0 0.25rem;
transition: border-color 150ms ease-in-out, color 150ms ease-in-out;
}
td b i {
display: inline-block;
transition: transform 150ms ease-in-out;
}
td:nth-child(2) a:hover b {
border-color: #1a1a1a;
color: #1a1a1a;
}
td:nth-child(2) a:hover b i {
transform: rotate(45deg);
}
tbody tr:nth-child(odd) td {
background-color: #fff;
}

160
index.php
View File

@ -19,126 +19,130 @@ include('inc/codes.php');
</nav>
</menu>
<form method="post" action="/" type="application/x-www-form-urlencoded">
<input type="url" value="" placeholder="URL to check..." name="url">
<input type="url" value="<?php echo $url; ?>" placeholder="URL to check..." name="url">
<button type="submit">Check</button>
</form>
</header>
<main>
<?php
// error message display
if (isset($error))
{
echo "
<address>
".$error['message']."
</address>";
}
?>
<main>
<?php
// if we have a valid request object
if (isset($request) && count($request->path) > 0)
{
$steps = count($request->path) - 1;
$count = ($steps == 1) ? '1 redirect' : $steps.' redirects';
$count = ($steps == 1) ? 'once' : $steps.' times';
echo "
<article>
<h2>Final destination</h2>
<p>The URL you traced had ".$count." and ended here:</p>
<p class=\"final\">
<a href=\"".$request->getFinalRedirect()."\" target=\"blank\">
".$request->getFinalRedirect()."
</a>
</p>
<h3>Redirect trace</h3>
<table>
<thead>
<tr>
<th>Step</th>
<th>Request</th>
<th colspan=\"2\">Code</th>
</tr>
</thead>
<tbody>";
<article>
<h2>Final destination</h2>
<p>Your URL returned a <code><strong>".$request->code."</strong></code> status code and redirected ".$count.":</p>
<p class=\"final\">
<a href=\"".$request->getFinalRedirect()."\" target=\"blank\">
".$request->getFinalRedirect()."
</a>
</p>
<h3>Redirect trace</h3>
<table>
<thead>
<tr>
<th>Step</th>
<th>Request</th>
<th colspan=\"2\">Code</th>
</tr>
</thead>
<tbody>";
foreach ($request->path as $step)
{
$item = $step['step'];
$url = $step['url'];
$code = $step['code'];
$next = ($step['next']) ? '⥂⇄↩︎' : '✓';
$next = ($step['next']) ? '↩︎' : ((isset($error)) ? 'x' : '✓');
echo "
<tr>
<td>".$item."</td>
<td>".$url." <a href=\"".$url."\" target=\"blank\"><b>↗︎</b></a></td>
<td><code>".$code."</code></td>
<td>".$next."</td>
</tr>";
<tr>
<td>".$item."</td>
<td>".$url." <a href=\"".$url."\" target=\"blank\"><b><i>↗︎</i></b></a></td>
<td><code>".$code."</code></td>
<td>".$next."</td>
</tr>";
}
echo "
</tbody>
<caption>
User agent: ".$request::USER_AGENT."
</caption>
</table>
</article>";
</tbody>
<caption>
User agent: ".$request::USER_AGENT."
</caption>
</table>
</article>";
}
else
{
echo "
<article>
<h2>
Trace a URL's redirects
</h2>
<p>
Enter a URL in the search box above to derive the final resolved URL after all redirects. The script runs recursive curl requests until we get a <code>200</code> status code. This is helpful to get around link tracking or original URLs that Pi-hole outright blocks (like email links).
</p>
<p>
I used to use <a href=\"https://wheregoes.com\">wheregoes.com</a> which is a good, reliable service, but decided to roll my own for privacy reasons. Absolutely nothing is logged as all URL searches are via POST and that's not currently included in my nginx logs.
</p>
<h3>
Technical details
</h3>
<p>
User agent
</p>
<p>
Other curl settings
</p>
</article>
";
<article>
<h2>
Trace a URL's redirects
</h2>
<p>
Enter a URL in the search box above to derive the final resolved URL after all redirects. The script runs recursive curl requests until we get a <code>200</code> status code. This is helpful to get around link tracking or original URLs that Pi-hole outright blocks (like email links).
</p>
<p>
I used to use <a href=\"https://wheregoes.com\">wheregoes.com</a> which is a good, reliable service, but decided to roll my own for privacy reasons. Absolutely nothing is logged as all URL searches are via POST and that's not currently included in my nginx logs.
</p>
<h3>
Technical details
</h3>
<p>
User agent
</p>
<p>
Other curl settings
</p>
</article>";
}
?>
<aside>
<h3>
HTTP response status codes
</h3>
<aside>
<h3>
HTTP response status codes
</h3>
<?php
if (isset($codes) && is_array($codes) && !empty($codes))
{
foreach ($codes as $group)
{
echo "
<details>
<summary>
".$group['label']." (<code>".$group['start']."</code>&ndash;<code>".$group['range']."</code>)
</summary>
<dl>";
<details>
<summary>
".$group['label']." (<code>".$group['start']."</code>&ndash;<code>".$group['range']."</code>)
</summary>
<dl>";
foreach ($group['codes'] as $code => $prop)
{
echo "
<!-- ".$code." -->
<dt>
<label for=\"".$code."\"><code>".$code."</code> ".$prop['name']."</label>
</dt>
<input type=\"checkbox\" id=\"".$code."\">
<dd>".$prop['desc']."</dd>";
<!-- ".$code." -->
<dt>
<label for=\"".$code."\"><code>".$code."</code> ".$prop['name']."</label>
</dt>
<input type=\"checkbox\" id=\"".$code."\">
<dd>".$prop['desc']."</dd>";
}
echo "
</dl>
</details>";
</dl>
</details>";
}
}
?>
<p>
See <a href="https://httpwg.org/specs/rfc9110.html#overview.of.status.codes">RFC 9110</a> for official documentation on each status code.
</p>
</aside>
</main>
<p>
See <a href="https://httpwg.org/specs/rfc9110.html#overview.of.status.codes">RFC 9110</a> for official documentation on each status code.
</p>
</aside>
</main>
</body>
</html>